fix: Fix incorrect platform name in version file

[heucke]

Just need to amend your commit with a sign-off (git commit --amend -s) and you should be good to go.

[hpersh]

Pull-request updated, HEAD is now f5c35f4b831e5c38166d69dc07b62d8ca87988a9

[hpersh]

Fixes https://github.com/open-switch/opx-platform-config/issues/70